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-   -   Parallel port emulation (https://eab.abime.net/showthread.php?t=22375)

alexh 17 March 2006 11:25

Parallel port emulation
 
Has any more work been done on parallel port emulation? For those who do not have an ethernet connection a Parnet / Pronet connection to their PC could help them transfer their files to the real amiga.

Toni Wilen 17 March 2006 11:31

PC parellel port can't support parnet-style connection. (PC port's status pins are either input or output but parnet for example requires bidirectional Paper Out -signal)

Doc Mindie 17 March 2006 12:06

Alexh, by using PC2Amiga (aminet) you can get a quite good Par-transfer. it's a fiddle to set up under Win2k and newer, but it's quite allright for WinME and below.

alexh 17 March 2006 15:36

Ok, so BUSY, PAPER OUT, SEL are all bidirectional on the Amiga, and inputs only on the PC in all modes?

Hmmm.

Looking at the ParNet cable

http://pinouts.ru/data/ParNet_pinout.shtml

And looking at the PC SPP pinouts

http://www.technick.net/public/code/...pinconpar_pc#2

I wonder if a workaround could be created by cross connecting pins 14, 16 and 18?

I dont know if you have that kind of low level control of the printer port.

I guess it's not worth thinking about. For A1200/A600 a PCMCIA ethernet solution is cheaper than a custom cable.

I was really only thinking about superior transfer performance than serial for transferring to and from A500's.

Toni Wilen 18 March 2006 09:17

BUSY, PAPER OUT = input
SEL = output

And no, it isn't worth the trouble..

jotd 18 March 2006 10:47

Quote:

Originally Posted by Toni Wilen
BUSY, PAPER OUT = input
SEL = output

And no, it isn't worth the trouble..

I agree. I use removable IDE disk drive that I access via a USB2 to IDE interface on the PC side (mounting the HD with WinUAE). Ok, I have to switch off the amiga, but I get a huge transfer rate. And for small files, you still have floppy disks.
Not sure if the latest laptop PCs still have a parallel port. There isn't any on the Dell recent laptops (but there are quite a lot of USB2 ports :))

ppill 20 March 2006 14:29

Quote:

Originally Posted by alexh
I was really only thinking about superior transfer performance than serial for transferring to and from A500's.

You could have a look at http://www.boomerangsworld.de/apccomm/ -- it uses linux though.

alexh 20 March 2006 15:13

Quote:

Originally Posted by Toni Wilen
SEL = output

You sure? All docs I can find have pin 13 (Select) marked as an input. It doesnt matter though.

Quote:

Originally Posted by Toni Wilen
And no, it isn't worth the trouble..

Ok, case closed.

Toni Wilen 20 March 2006 17:19

You are right, SEL is input.

Lets try again..

Input: BUSY, PAPEROUT, SEL, ACK

Output: DRDY

BUSY, PAPEROUT and SEL are bidirectional in Amiga.


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